DESCRIPTION The VF526DT Bipolar Latch, Dual Hall-effect Digital Position The VF526DT’s built-in temperature compensation is designed Sensor has two distinct Hall sensing elements precisely to match the temperature coefficient of low-cost magnets, located 1,4 mm [0.055 in] apart on a single integrated circuit allowing for a reliable, yet cost-effective, sensor-magnet chip. The elements are encapsulated in a thermoset molding combination. material. A unique, regulator circuit provides extremely stable operation The two active Hall latches provide speed and direction with supply voltages from 3.4 Vdc to 24 Vdc. It can directly indication of a magnetic gradient (such as a rotating ring interface with many electronic components without buffering or magnet) across the face of the package. compensation circuitry. The miniature, 4-pin SOT-89B package surface mounts on PC (Printed Circuit) boards and flexible circuits. FEATURES AND BENEFITS Temperature-compensated magnetics and ultra-low offset drift with temperature provides a stable output over a full POTENTIAL APPLICATIONS Transportation Anti-pinch electric motor control systems for: temperature range of -40 °C to 125 °C [-40 °F to 257 °F]. power windows Single, miniature 4-pin SOT-89B plastic package supplied power seats (headrest) on tape and reel for automated assembly, allowing power sliding doors potential savings in PC board space and labor cost. Two separate built-in Hall sensors and their associated sunroofs Magnetic encoding for electronic steering systems logic circuitry provide a frequency signal for speed output and a logic level (high or low) signal for direction output, potentially replacing multiple sensors and electronic components. Wide operating voltage range of 3.4 Vdc to 24 Vdc increases application flexibility. Tested to moisture sensitivity similar to JEDEC J-STD020B, MSL Level 1, allowing the VF526DT to be used in environments where humidity may be a problem. RoHS-compliant materials meet Directive 2002/95/EC. Industrial Motion control systems for pulleys and belts Garage door openers and sliding doors Position and velocity detection in industrial equipment Linear displacement sensing (using a magnetic strip of alternating poles) Table 1. Absolute Maximum Ratings1 Characteristic Sym. Supply voltage Vcc Output voltage (OFF) Vout Output ON current Iout Storage temperature Ts Operating temperature T ESD: IEC 801-2, Lev 1 ESD MIL-STD-883, Method 3015.7 Magnetic flux Min. -0.5 -0.5 – -65 [-85] -40 [-40] Max. 30 30 10 160 [320] 150 [302] Unit V V mA °C [°F] °C [°F] 2 4 – – KV Note 1: Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. – no limit Table 2. Specifications Characteristic Sym. Condition Magnetic actuation type Output type Max. Unit 24 Vdc – 3.4 – Temp -40 [-40] – – – 12 mA – – 14 mA – – 5 mA – – 0.4 V – – 5 µs Circuit speed to direct delay Td Vcc = 3.4 V to 24 V Vcc = 24 V, -40 °C < T < 125 °C, Vout = 24 V, B<MIN REL Vcc = 24 V, -40 °C < T < 125 °C, Isink = 5 mA, B<MAX OP Vcc = 24 V, -40 °C < T < 125 °C, Isink = 5 mA, B<MAX OP Vcc = 24 V, -40 °C < T < 125 °C, Isink = 5 mA, B<MAX OP Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF Rise time Tr Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF – – 1.5 µs Fall time Tf Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF – – 1.5 µs Frequency Top Operate point Bop Release point Brel Differential (OP-REL) Diff Symmetry ([OP +REL]/2) Sym Vcc = 12 V, RL = 1.6 kOhm, CL = 20 pF T = 25 °C -40 °C < T < 125 °C T = 25 °C -40 °C < T < 125 °C T = 25 °C -40 °C < T < 125 °C T = 25 °C -40 °C < T < 125 °C SOT-89B <1 – 60 – -60 – 200 – -65 – 130 – -130 – 260 – 0 – >1000 – 200 – -200 – 320 – 65 Hz Gaus s Gaus s Gaus s Gaus s Supply current (OFF) Ioff Supply current (ON) Ion Load current Isink Output saturation Vsat Package style similar to JEDEC J-STD-020B, MSL Level 1 Moisture sensitivity test Package quantity available in 1000/tape and reel Figure 1. Output Timing Diagram Td Change Direction Td SPEED DIRECTION Td TIME 2 Typ. Vcc Supply voltage Operating temperature Min. bipolar latch dual open collector, sinking (speed and direction) www.honeywell.com/sensing 125 [257] °C [°F] Figure 2. Sensor Function Diagram with Customer-Supplied Magnet When the change in magnetic flux at Hall 1 leads N S Hall 1 Hall 2 S N SPEED OUTPUT Trigger and Amplifier the change at Hall 2, the direction output is HIGH; when it follows Hall 2, the direction output is LOW. Trigger and Amplifier Logic DIRECTION OUTPUT Figure 3. Mounting Dimensions (For reference only. mm/[in].) Tape Solder Pad 2,5 [0.098] 2,0 [0.079] 0,8 [0.031] B 2,6 [0.102] A 1 0,7 TYP [0.028] 2 4,6 [0.181] 3 1,2 [0.047] 0,8 TYP [0.031] Honeywell Sensing and Control 3 Figure 3. Mounting Dimensions (continued) Reel Order Guide Catalog Listing VF526DT Description Bipolar latch, dual hall-effect digital position sensor with speed and direction outputs, on tape and reel (1000 pcs per reel) WARNING WARNING MISUSE OF DOCUMENTATION The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. SALES AND SERVICE Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or: E-mail: [email protected] Internet: www.honeywell.com/sensing Phone and Fax: Asia Pacific +65 6355-2828 +65 6445-3033 Fax Europe +44 (0) 1698 481481 +44 (0) 1698 481676 Fax Latin America +1-305-805-8188 +1-305-883-8257 Fax USA/Canada +1-800-537-6945 +1-815-235-6847 +1-815-235-6545 Fax Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 www.honeywell.com/sensing 005870-2-EN IL50 GLO Printed in USA December 2009 © 2009 Honeywell International Inc. All rights reserved.